If you're the handy diy type, a dual motor frame + bamboo butcher block counter top is similar to a Fully Jarvis at a big discount.

I bought this standing desk: https://www.amazon.com/gp/product/B07QCNL73Y

coupled with this top: https://www.ikea.com/us/en/p/bekant-tabletop-white-stained-oak-veneer-00366301/

I have 3 large monitors plus my laptop mounted on dual mount arms. Had it for 2 years and have experienced no problems. It's very smooth. I suggest you get a balance board also. If I don't use one I tend to lock my knees which gets painful after awhile.